Answer:
1. True. Same side interior angles sums to 180°.
2. True. Alternate exterior angles are congruent.
3. True. Same side exterior angles sums to 180°.
4. True. Corresponding angles are congruent.
5. True. Same side interior angles sums to 180°.
6. True. Angle 3 and angle 8 are supplementary.
7. False. Alternate exterior angles are congruent.
8. True. Same side interior angles sums to 180°.
9. True. Corresponding angles are congruent.
10. True. Alternate interior angles are congruent.